package com.heima.user.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.heima.utils.common.AppJwtUtil;
import com.heima.utils.thread.AppThreadLocalUtil;
import lombok.RequiredArgsConstructor;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.Map;

/**
 * @author Administrator
 * @description 针对表【ap_user(APP用户信息表)】的数据库操作Service实现
 * @createDate 2024-09-17 16:50:13
 */
@Service
@RequiredArgsConstructor
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser>
        implements ApUserService {

    @Override
    public ResponseResult login(LoginDto loginDto) {
        // 1. 正常登录
        if (!StringUtils.isBlank(loginDto.getPhone()) && !StringUtils.isBlank(loginDto.getPassword())) {
            // 1.1 查询用户
            ApUser apUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, loginDto.getPhone()));
            if (apUser == null) return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST, "用户不存在");

            // 1.2 比对密码
            String salt = apUser.getSalt();
            String pwd = loginDto.getPassword();
            // pwd + salt 的md5值
            pwd = DigestUtils.md5DigestAsHex((pwd + salt).getBytes());
            if (!pwd.equals(apUser.getPassword()))
                return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);

            // 1.3 返回数据 jwt
            Map<String,Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(apUser.getId().longValue()));

            // 删除关键字段值，防止被解密
            apUser.setSalt("");
            apUser.setPassword("");
            map.put("user", apUser);

            return ResponseResult.okResult(map);
        } else {
            // 2. 游客同样返回 token   id = 0
            HashMap<String, Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(0L));
            return ResponseResult.okResult(map);
        }
    }
}




